close-knit
US /ˌkloʊsˈnɪt/
UK /ˌkloʊsˈnɪt/

1.
unido, estrecho
closely bound together by a common interest or purpose
:
•
They are a close-knit family that always supports each other.
Son una familia unida que siempre se apoya mutuamente.
•
The small community was very close-knit.
La pequeña comunidad era muy unida.